| Company | Location | Certifications | License # |
|---|---|---|---|
| All American Environmental LLC | Jefferson Twp, NJ | ClosureInstallation-Entire UST SystemSubsurface Evaluation | US564779 |
| Betts Environmental Services Corporation | Butler Boro, NJ | ClosureInstallation-Entire UST SystemSubsurface Evaluation | US00038 |
| Bristol Developers Inc | Denville Twp, NJ | Cathodic Protection TesterClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | US527853 |
| Care Environmental Remediation Svs Inc | Randolph Twp, NJ | ClosureSubsurface Evaluation | US01354 |
| Dewberry | Parsippany-Troy Hills, NJ | ClosureSubsurface Evaluation | US917076 |
| Environmental Compliance & Control, Inc | Denville Twp, NJ | ClosureSubsurface Evaluation | US00623 |
| Ewma, LLC | Parsippany-Troy Hills, NJ | ClosureSubsurface Evaluation | US00113 |
| First Environment Inc | Butler Boro, NJ | HHO ClosureHHO Subsurface Evaluation | US1007648 |
| Gecp Inc Dba G Environmental | Roxbury Twp, NJ | ClosureSubsurface Evaluation | US574794 |
| Geoenvironmental Solutions LLC | Lincoln Park Boro, NJ | HHO ClosureHHO Installation-Entire UST SystemHHO Subsurface Evaluation | US1139946 |
| Grounded Geostrategies LLC | Randolph Twp, NJ | ClosureSubsurface Evaluation | US932729 |
| H2m Associates Inc | Parsippany-Troy Hills, NJ | ClosureSubsurface Evaluation | US00142 |
| Highlander Environmental Corp | Butler Boro, NJ | ClosureInstallation-Entire UST SystemSubsurface Evaluation | US937123 |
| J Guider & Associates Pc | Parsippany-Troy Hills, NJ | Cathodic Protection SpecialistClosureHHO Subsurface EvaluationInstallation-Entire UST SystemTank Testing | US01131 |
| Langan Engnrng & Envrnmntl Services Inc | Parsippany-Troy Hills, NJ | Subsurface Evaluation | US00934 |
| Matrix New World Engineering, Land Surveying | East Hanover Twp, NJ | Cathodic Protection SpecialistClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | US00434 |
| Norroc Enterprises LLC | Parsippany-Troy Hills, NJ | ClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | US425208 |
| Robert Engineering | Montville Twp, NJ | ClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing | US00710 |
| Sesi Consulting Engineering | Parsippany-Troy Hills, NJ | Closure | US1026028 |
| Sss Construction Co Inc | Dover Town, NJ | ClosureInstallation-Entire UST System | US00418 |
| Suburban Consulting Engineer Inc | Mount Olive Twp, NJ | ClosureSubsurface Evaluation | US1100651 |
| Wayne Cornelius Gc LLC | Mount Arlington Boro, NJ | Closure | US508772 |
22 companies in the NJDEP UST certification program are based in Morris County as of 2026-07-17. Companies based elsewhere in New Jersey also commonly serve the county.
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